Added image view module

image_view_module/main.c

@@ -0,0 +1,152 @@
+/*
+ * main.c
+ *
+ * Copyright 2015 Edward V. Emelianov <eddy@sao.ru, edward.emelianoff@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ */
+
+
+#include <sys/time.h>
+#include <stdio.h>
+#include <getopt.h>
+#include <stdbool.h>
+#include <X11/Xlib.h> // XInitThreads();
+
+#include "main.h"
+#include "macros.h"
+#include "bmpview.h"
+
+
+//GLubyte *BitmapBits = NULL;
+
+/*
+pthread_mutex_t m_ima = PTHREAD_MUTEX_INITIALIZER, m_wvlt = PTHREAD_MUTEX_INITIALIZER,
+	m_hist = PTHREAD_MUTEX_INITIALIZER;
+*/
+unsigned int bufsize;
+
+void help(char *s){
+	fprintf(stderr, "\n\n%s, simple interface for LOMO's webcam \"microscope\"\n", s);
+	fprintf(stderr, "Usage: %s [-h] [-d videodev] [-c channel]\n\n", s);
+	fprintf(stderr,
+		"-h, --help:\tthis help\n"
+		"-d, --device:\tcapture from <videodev>\n"
+		"-c, --channel:\tset channel <channel> (0..3)\n"
+	);
+	fprintf(stderr, "\n\n");
+}
+
+void* change_image(void *data){
+	FNAME();
+	windowData *win = (windowData*) data;
+	int w = win->w, h = win->h, x,y, id = win->ID;
+	GLubyte i;
+	DBG("w=%d, h=%d",w,h);
+	for(i = 1; ;i++){
+		if(!searchWindow(id)) pthread_exit(NULL);
+		pthread_mutex_lock(&win->mutex);
+		GLubyte *raw = win->rawdata;
+		for(y = 0; y < h; y++){
+			if(y%20 == 19){
+				raw += w*3;
+				continue;
+			}
+			for(x = 0; x < w; x++){
+				if(x%20 != 19){
+					if(i < 80) raw[0]++;
+					else if(i < 170) raw[1]++;
+					else raw[2]++;
+				}
+				raw += 3;
+			}
+		}
+		pthread_mutex_unlock(&win->mutex);
+		usleep(10000);
+	}
+}
+
+/*
+void *GLloop(void *data){
+	FNAME();
+	windowData *win = (windowData *)data;
+	createWindow(win);
+	return NULL;
+}
+*/
+
+/**
+ * create new window, run thread & return pointer to its structure or NULL
+ * @param title - header (copyed inside this function)
+ * @param w,h   - image size
+ */
+windowData *createGLwin(char *title, int w, int h){
+	windowData *win = MALLOC(windowData, 1);
+	if(!addWindow(win)){
+		FREE(win);
+		return NULL;
+	}
+	GLubyte *raw = MALLOC(GLubyte, w*h*3);
+	win->title = strdup(title);
+	win->rawdata = raw;
+	if(pthread_mutex_init(&win->mutex, NULL)){
+		WARN(_("Can't init mutex!"));
+		removeWindow(win->ID);
+		return NULL;
+	}
+	win->w = w;
+	win->h = h;
+//	pthread_create(&win->glthread, NULL, GLloop, (void*)win);
+	createWindow(win);
+	return win;
+}
+
+/*
+GLubyte *prepareImage(){
+	static GLubyte *imPtr = NULL;
+	//static int bufferSize;
+	//int readlines, linesize;
+	//GLubyte *ptr;
+	if(!imPtr) imPtr = calloc(100, sizeof(GLubyte));
+	return imPtr;
+}
+*/
+
+int main(_U_ int argc, _U_ char** argv){
+	windowData *mainwin, _U_ *win, _U_ *third;
+	int w = 640, h = 480;
+
+	char *v[] = {PROJNAME, NULL};
+	int c = 1;
+	glutInit(&c, v);
+
+	initial_setup(); // locale & messages
+	XInitThreads(); // we need it for threaded windows
+	//BitmapBits = prepareImage();
+	mainwin = createGLwin("Sample window", w, h);
+	if(!mainwin) return 1;
+	pthread_create(&mainwin->thread, NULL, &change_image, (void*)mainwin);
+	win = createGLwin("Second window", w/2, h/2);
+	if(!win) return 1;
+	pthread_create(&win->thread, NULL, &change_image, (void*)win);
+	third = createGLwin("Second window", w/4, h/4);
+	if(!win) return 1;
+	pthread_create(&third->thread, NULL, &change_image, (void*)third);
+	// wait for end
+	glutMainLoop();
+	return 0;
+}
+